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dh 
en 
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re( 
m( 


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d'images  nAcessaire.  Les  diagrammes  suivants 
illustrent  la  mAthode. 


1 

2 

3 

1 

2 

3 

4 

5 

6 

w 


K       ■< 


'■)' 


jit 


h     * 


9 


SMITHSONIAN   INSTITUTION. 

UNITED    STATES     NATIONAL    MUSEUM. 


DESCRIPTIONS   C"    NEW   SPECIES    OF   NORTH 

AMERICAN  COLEOPTERA  IN  THE  FAMILIES 

CERAMBYCIDvE    AND    SCARAB^ID^. 


BY 


MARTIN  L.  LINELL, 

Aid,  Department  of  I  fleets. 


:'•:?-■ 


From  the  Proceedinga  of  the  United  States  National  Museum,  Vol,  XIX,  pageu  393-401. 

[No.  1 1 13,] 


,M 


WASHINGTON: 

GOVERNMENT  PRINTING  OFFICE. 
1896. 


DESCRIPTIONS  OF  NKW  SPECIES  OF  NORTH  AMERICAN 
COLEOPTERA  IN  THE  FAMILIES  CERAMRYOIDJ*:  AND 
SCAEAB.EID.E. 


By  Martin  L.  Linell, 

Aid,  Ih'parlmenI  of  Innects. 


While  incorporating  recent  .accessions  in  the  collection  of  North 
American  Ceranibycida^  in  the  United  States  National  Museum,  sev- 
eral undescribed  species  were  met  with.  For  one  of  these,  a  snnill 
species  from  southern  Texas  with  remarkable  antennal  stru<;tnre,  it 
was  found  necessary  to  ert^ct  a  new  genus.  Two  new  species  of  Scar- 
abffiida^  are  also  described. 


ELAPHIDION    ALBOFASCIATUM,  new  species. 

Cylindrical,  robust,  uniformly  black,  shining,  sparsely  clothed  with 
rather  long,  mostly  appressed,  grayish  white  hairs,  ccmdensed  on  the 
middle  of  elytra  to  a  straight  transverse  fascia.  Antenna'  without 
sinnes,  piceous  brown,  very  stout,  shorter  than  the  body  in  both  sexes; 
first  joint  thick,  clavate,  a  little  longer  than  third;  ftmrth  shorter  than 
third;  fifth  to  eleventh  subequal  in  length;  third  and  fourth  strongly, 
fifth  slightly  campanulate  at  apex;  fifth  to  eleventh  flattened,  suban- 
gulate  internally  at  apex.  Palpi  subequal;  last  joint  triangular, 
obliquely  truncate.  Thorax  slightly  longer  th.an  broad,  cylindrical, 
broadly  but  not  strongly  constricted  at  base,  hardly  constric-ted  at 
apex;  disk  coarsely,  moderately  densely  punctate  with  a  shining  cal- 
losity, more  or  less  diamond-shaped,  at  middle  and  an  obsolete  tuber- 
cle at  the  sides  behind  the  middle.  Scutellum  transverse,  rounded, 
densely  hairy.  Elytra  parallel,  truncate  at  base,  conjointly  rounded  at 
apex  without  spines,  coarsely  but  not  very  densely  punctate  at  base, 
abruptly  more  finely  punctate  behind  the  anterior  margin  of  the  wliite 
band  and  gradually  smoother  toward  apex.  The  longer  white  hairs 
forming  the  band  sometimes  continue  to  a])ex,  but  generally  the  band 
is  very  distinct.  Ventral  surface  more  shining,  moderately  punctate; 
abdomen  finely  punctulate.  Sixth  ventral  segment  exposed,  in  the  male 
corneus,  deeply  concave  with  margin  rounded,  in  the  female  membranous, 
truncate.    Legs  short,  moderately  stout,  coarsely  and  densely  punctate. 


Proceedings  U.  S.  National  Museum.  Vol.  XIX-No.  1113. 


394 


XORTH  A2IEIIICAN  COLEOPTERA—LIXELL. 


VOL.  XIX. 


Tarsi  broad,  parallel;  first  joint  of  the  posterior  pair  slightly  longer 
than  second  and  third  togetlier.     Length,  14  niin. 

Typc.—^o.  202,  U.S.N.M. 

Of  this  liandsonie,  strikingly  distinrjt  species  twenty  examples  were 
collected  l)y  Mr.  D.  \V.  Co(iuillett  in  the  month  of  July  in  the  foothills 
bonlering  Mohave  Desert  on  the  south,  Los  Angeles  County,  California. 
It  resembles  E.  mafttum,  Le  Conte,  but  may  bo  at  once  distinguished  by 
the  unarmed  antennte,  the  coarser  white  vestiture,  and  the  elytral  fascia. 

Genus  PIEZOCERA,  Serville. 

Lacordaire's  group  Piezocerides  is  closely  allied  to  Ibiouides,  dittering 
only  by  tlie  serrate  antenna'.  The  principal  generic  characters  of  Piezo- 
vera  are  the  strongly  compressed  tibia',  and  the  flattened  antennal  tuber- 
cles, separated  on  the  front  only  by  a  flue,  impressed  line.  Four  or  flve 
tropical  Amerii-an  si)ecies  are  described,  and  one,  P.  monochroa,  Bates, 
from  Almalonga,  Mexico.  This  latter  is  closely  allied  to  the  following 
Texan  species,  but  jiidging  from  Bates'  description  has  a  different 
thorax. 

PIEZOCERA  SERRATICOLLIS,  new  species. 

Linear,  uniformly  dark  castaneous,  shining,  sparsely  cov  ^red  with 
long  erect  hairs.  Antenna?  three-fourths  the  length  of  the  body,  from 
the  third  joint  strongly  flattened,  serrate,  bicarinate  on  both  sides  and 
with  an  additional  short  median  carina  at  apex  of  each  joint;  third  to 
tenth  joints  subequal  in  length,  triangular,  longer  than  broad ;  eleventh 
joint  longer,  obtuse  at  apex.  Thorax  twice  longer  than  broad,  broadly 
and  strongly  constricted  at  base,  slightly  concave  and  smooth  before 
the  constriction  at  middle,  with  an  obtuse  smooth  tubercle  each  side 
of  the  concavity;  disk  with  sparse  setiferous  punctures;  sides  broad- 
est before  the  basal  constriction  and  slightly  narrowed  to  apex,  with 
numerous  setiferous  tubercles,  making  the  margin  appear  crenulate 
if  seen  from  above.  Elytra  broader  than  thorax,  subparallel,  longi- 
tudinally impressed  on  the  disk  alongside  the  suture,  with  sparse 
setiferous  jiunctures  arranged  subseriately  j  intervals  nearly  smooth ; 
apices  strongly  obliquely  truncate  inward,  the  angles  rounded.  Legs 
sparsely  hairy;  femora  moderately  clavate,  nearly  smooth;  tioiat 
strongly  compressed  and  carinate,  with  a  series  of  coarse  punctures 
along  the  exterior  side;  tarsi  broad,  short;  first  joint  of  the  posterior 
pair  one-half  longer  than  the  second.    Length,  C  ram. 

One  example,  collected  by  Prof.  C.  H.  T.  Townseud  at  Brownsville, 
Texas. 

Type.—Hio.  203,  U.S.N.M. 


IBIDION  EXCLAMATIONIS,  Thomso  .. 

Two  examples  of  this  species,  previously  recorded  from  Almalonga, 
Mexico,  are  in  the  National  Museum,  collected  by  Prof.  C.  H.  T.  Townseud, 


VOL,  XIX. 


f  longer 


lea  were 
foothills 
iliforiiia. 
islied  by 
bl  fascia. 


iittering 
of  Piezo- 
ill  tiiber- 
ir  or  five 
f,  Bates, 
ollowing 
differeut 


^eil  with 
dy,  from 
ides  and 
third  to 
eleventh 
,  broadly 
h  before 
ach  side 
J8  broad- 
»ex,  with 
Tenulate 
}1,  longi- 
I  sparse 
smooth ; 
d.  Legs 
tibiae 
unctures 
posterior 

wnsville, 


HO.  1113. 


PlWCEEDiyOS  OF  THE  NATIOSAL  MUSEUM. 


395 


malonga, 
ownsend, 


at  Brownsville,  Texas.  The  genus  Ibidion^  that  now  enters  the  list  of 
our  Texan  fauna,  differs,  according  to  Lacordaire,  from  Compm,  Perty, 
only  by  the  cariuato  tibia*.  Tlie  generic  character  is  not  very  distinct 
in  this  species. 

IBT.DION  TOWNSENDI,  new  species. 

Male. — Linear,  shining,  piceous  brown,  covered  with  a  flue  golden 
pubescence,  dense  on  the  protliorax  and  at  the  sides  of  the  ventral 
surface,  spar.se  on  the  elytra  and  legs  and  absent  from  the  antenna'. 
In  addition  to  this  it  has  sparse  long  erect  hairs,  longest  and  most 
numerous  on  the  six  basal  joints  of  (lie  antenuie  and  on  the  femora. 
Head  broader  than  thorax,  coarsely  punctate.  Antennal  tubercles 
prominent,  acute.  Antenna;  one-half  longer  than  the  body,  first  joint 
stout,  coarsely  punctate,  as  long  as  the  fourth ;  third  to  sixth  thickened, 
somewhat  flattened,  sparsely  but  roughly  punctate,  linear,  finely  cari- 
nate  above;  third  joint  nearly  twice  longer  than  fourth;  fifth  and  sixth 
equal,  one-half  longer  than  fourth;  the  five  apical  joints  equal,  filiform, 
l)ale  in  color.  Thorax  cylindrical,  a  little  more  than  twice  as  long  as 
broad,  very  finely  and  densely  punctulate,  with  a  smooth,  raised  median 
line,  abbreviated  at  each  end.  Scutellum  semicircular,  densely  golden 
pubescent.  Elytra  parallel,  one  half  broader  than  thorax ;  the  inflexed 
sides  subopaque,  light  brown,  minutely  punctate;  disic  piceous,  sparsely 
coarsely  punctate,  flattened  and  longitudinally  impressed  at  basal 
third ;  equidistant  from  suture  and  margin  are  two  elongate  ivory  spots, 
the  anterior  one  just  outside  the  impression  at  basal  third,  the  posterior 
one  twice  shorter  at  apical  third.  Thighs  strongly  clavate,  sparsely 
and  minutely  punctulate.  Tibije  dilated  toward  apex,  especially  the 
anterior  ones,  distinctly  carinate.    Length,  6.5  to  7.5  mm. 

Two  examples;  collected  June  7  and  23  at  Brownsville,  Texas,  by 
Prof.  C.  H.  T.  Townsend. 

Type.— No.  204,  IT.S.N.M. 

PCECILOBRIUM  RUGOSIPENNE,  new  species. 

Linear,  cyaneous,  shining,  anterior  femora  reddish  yellow.  It  differs 
from  P.  chalybceum,  Le  Conte,  as  follows :  Thorax  less  rounded  on  the 
sides,  subcylindrical,  sparsely  but  strongly  punctate.  Elytra  coarsely 
and  densely  rugosopunctate.  Length,  4 J  mm.  One  example  from  Cali- 
fornia. 

Type.— No.  205,  U.S.N.M. 

OBRIUM  MOZINNiS,  new  species. 

Elongate,  parallel,  very  shining;  sparsely  hairy,  reddish  yellow, 
elytra,  autenme,  tlbiie,  and  tarsi  black.  Head  as  broad  as  elytra, 
sparsely  coarsely  punctate  each  side  of  a  smooth  median  space;  clypeal 
suture  deeply  impressed.  Antennnj  a  little  longer  than  the  body;  first 
joint  sparsely  punctate,  shining,  clavate,  as  long  as  the  third;  third 


{ 


866 


NOllTU  AMKIilCAN  COLKOI'TKKA—LINELL. 


VOL.  XIX. 


and  fourth  equal,  slightly  incrassate  toward  apex,  sparsely  hairy; 
fifth  to  eleventh  a  little  lonjjer,  e(]ual,  filiform,  subopaque,  finely  pu- 
bescent. Thorax  slij^litly  longer  than  broiu),  narrower  than  the  head, 
strongly  constricted  at  base,  much  less  constricted  at  apex;  sides 
obtusely  angulate  between  tlio  constrii'tions;  a  deep  fovea  above  tlio 
angle;  disk  with  very  sparse  setigerous  punctures.  Elytra  witli  (toarse, 
spar.se  setigerous  punctures,  subseriately  arranged;  apices  separately 
rounded.  Ventral  surface  and  femora  with  sparse,  minute,  setigerous 
punctures;  tibiu;  and  tarsi  with  denser  hairs.     Length,  4  mm. 

Male. — Thorax  immaculati^;  abdomen  bla(^kish  at  base;  fifth  ventral 
segment  witli  a  siunicircular  emargination. 

Female. — Thorax  with  a  transverse  black  spot  on  disk;  abdomen 
immaculate;  second  segment  very  broadly  emargimite,  semieircularly 
excavate,  excavation  filled  up  with  a  dense  brush  of  yellow,  coarse 
hairs;  third  segment  broadly  concave,  smooth ;  fourth  flat,  semicircular, 
notched  at  ai)ex;  fifth  very  narrow,  triangular,  obtu.se  at  apex. 

Two  examples,  male  and  female,  collected  by  ]\Ir.  E.  A.  Schwarz, 
June  5,  at  Brownsville,  Texas,  on  Mozinna  spatulata.  Mr.  Schwarz 
recognized  this  as  an  undescribed  species  and  labeled  it  with  the  MS. 
name  used  above. 

Tj/pe.—'So.  200,  IJ.S.N.M. 


TETRANODUS,  new  genus. 

Ant  !..ia^  with  joints  tliird  to  sixth  strongly  incrassate  and  clavate; 
eyes  coarsely  granulate.  In  other  generic  characters  it  agrees  with 
Emlcrces  of  Le(!ont( . 

Type. —  TetranodtLs  nitjeicotlis,  new  species. 


TETRANODUS  N I VEICOLLIS,  new  species. 

llufous,  apical  half  of  elytra,  a  spot  behind  the  humeri,  abdomen 
and  tibiio  black,  8i)arsely  covered  with  whitish,  flying  hairs.  Head 
very  coarsely  and  densely  punctate,  geuje  rugose.  Eyes  small,  coarsely 
granulate,  deeply  emarginate,  rounded  in  front,  gradually  attenuated 
behind  the  base  of  the  antenna'.  These  latter  somewhat  longer  than  the 
body,  finely  pubescent,  11-jointed;  first  joint  moderately  stout,  slightly 
arcuate,  as  long  as  tlie  fifth;  second  joint  small,  a  little  longer  than 
wide;  third  nearly  twice  longer  than  fourth,  strongly  clavate,  rounded 
at  apex;  fourth,  pyriform;  fifth  and  sixth,  subecpial,  each  longer  than 
fourth,  oval,  pedunculate;  last  five  joints  vSleiider,  seventh  to  tenth 
gradually  decreasing  in  length,  eleventh  equal  to  tenth.  Thorax  more 
than  twice  longer  than  broad,  strongly  arcuate  upward  from  the  base, 
densely  longitudinally  strigose ;  base  strongly  constricted,  with  a  trans- 
verse band  of  dense  silvery  white  hairs.  Elytra,  cylindrical  in  outline, 
hardly  broader  than  thorax,  convex  and  conjointly  rounded  at  apex; 
subbasal  ridge  slight,  obtuse;  a  deep  transverse  depression  at  basal 
third,  behind  which  there  is  a  strictly  transverse,  strongly  elevated 


\ 


VOL.  XIX. 

ily  liairy; 

finely  pu- 

the  bend, 

ex;  sides 

iibove  tlie 

til  (toarse, 

leparately 

*etigerous 

• 

th  ventral 

abdomen 
circularly 
i\v,  coarse 
iiicircular, 

iX. 

Schwarz, 
'.  Schwarz 
1  the  MS. 


lI  clavate; 
jrees  with 


,  abdomen 
rs.  Head 
11,  coarsely 
itteniiated 
3r  than  the 
it,  slightly 
mger  than 
e,  rounded 
)nger  than 
I  to  tenth 
lorax  more 
1  the  base, 
th  a  trans- 
in  outline, 
i  at  apex; 
n  at  basal 
Y  elevated 


NO.  Ilia. 


rnarEEDiNdS  of  the  xatioxal  mvsevm. 


397 


ivory  vitti),  not  quite  rea<rhing  margin  nor  suture;  the  punctuation  is 
sparse,  but  rather  coarse  before  the  ivory  ban<l,  and  behind  it,  it  is 
ilner,  gradually  more  obsolete  toward  apex.  The  silvery  band  of  the 
prothoracic  peduncle  is  prolonged  beneath  on  the  sldesof  the  inesoster- 
num,  and  the  ivory  band  of  elytra  is  continued  as  a  band  of  silvery  hairs 
on  the  posterior  part  of  the  metasternum.  Femora  strongly  clavate; 
tibia'!  deeply  sulcate  and  carinate;  tarsi  short.     Length  4  mm. 

One  example,  collected  by  I'rof.  (J.  II.  T.  Townseud  at  JJrownsville, 
Texas,  .lune  liO,  18U5. 

Typc—^o.  208,  II.S.N.M. 

It  will  be  interesting  to  see  if  the  antennal  characters  of  this  species 
are  sexual  or  not,  Avlien  the  female  is  discovered.  IJates  has  described 
an  allied  genus  Diphyrama,^  where  the  male  has  the  third  and  fourth 
antennal  joints  strongly  clavate  and  the  female  these  joints  simple  but 
the  terminal  joints  dilated. 

LEPTURA  PERNIGRA,  new  species. 

liobust,  entirely  black,  covered  with  a  sparse,  short,  black  jjubes- 
cence,  longer  and  more  dense  on  the  thorax.  Dorsal  surface  sub- 
opa(]ue;  ventral  surface  and  legs  shining.  Ai  tennaj  filiform,  as  long 
as  three-fourths  of  the  body  in  the  male,  shorter  in  the  female; 
fourth  joint  as  long  as  the  sixth,  fifth  a  little  lone,^r,  third  a  little 
longer  than  fifth;  last  joint  not  appendiculate.  Head  i^  "  wide  than 
the  thorax;  eyes  large,  prominent;  vertex  slightly  concave,  ru^-osely 
punctate;  mouth  strongly  produced;  clypeus  and  labruin  shining, 
sparsely  punctate.'  Thorax  campanulate,  a  little  longer  than  wide, 
strongly  narrowed  at  apex,  deeply  constricted  at  base,  strongly 
rounded  at  the  sides;  posterior  angles  wanting;  median  line  obso- 
letely  depressed,  smooth  at  base;  disk  densely  but  not  confluently, 
moderately  coarsely  punctate.  Elytra  at  base  much  broader  than 
thorax,  slightly  narrowed  from  the  base;  apices  slightly  dehiscent, 
obliquely  truncate,  broadly  emarginate  with  angles  acute;  punctua- 
tion slightly  less  coarse  than  on  the  thorax,  very  dense  but  not  conflu- 
ent at  the  base,  more  dispersed  and  muricate  toward  apex;  ventral 
surface  densely  punctate;  middle  of  the  last  three  abdominal  segments 
sparsely  and  finely  punetulate,  in  the  female  nearly  smooth.  Length, 
10  to  10.5  mm. 

Male. — Last  ventral  segment  broadly  concave,  apical  margin  broadly 
rounded. 

Eleven  males  and  two  females  collected  on  Wilsons  Peak,  Los 
Angeles  County,  California,  in  June  by  Mr.  D.  \V.  Coquillett. 

Type.—^o.  207,  U.S.N.M. 

This  very  distinct  species  should  take  its  place  in  the  group  L.  san- 
guinea  of  LeConte.    From  the  equally  black  male  of  L.  Iwtifica,  LeConte, 


'  Trans.  Ent.  Soc.  London,  1872,  p.  187. 


398 


NORTU  AMERICAN  COLEOPTERA—LINELL. 


VOL.  XIX. 


it  in  diatiiiRaiBlied  tit  once  by  itH  robust  form  and  globose,  constricted 
tliurax. 

LEPTURA  COQUILLETTI,  new  species. 
(Group  laita  of  LeConte.) 

Moderately  robtiHt,  the  ranlu  uh  Htout  as  tbo  largest  females  of  L. 
tribal  tea  ta,  LeConte,  the  fciiiale  a.s  the  male  of  L.  nitens,  Forater.  An- 
tenniu  entirely  black,  tlliforni,  as  long  an  tliree-fonrtliH  of  the  body 
in  the  male,  considerably  shorter  in  the  female.  Head  (except  month 
and  antenna*),  prothorax,  ))ectu8,  and  abdomen  densely  covered  with 
golden  pubescence,  entirely  concealing  the  black  surface,  at  least  in  the 
female.  No  black  hairs  on  the  disk  of  prothorax,  as  in  L.  trihalteata. 
Thorax  deeply  channeled  along  the  base,  strongly  constricted  at  the 
sides  beliind  the  middle;  iK)sterior  angles  distinctly  prolonged  (as  in 
L.  trihalteata);  disk  densely  punctate  in  the  female,  less  densely  in  the 
male.  Elytra  somewhat  rounded  at  the  sides,  finely  punctate;  the 
apices  very  obliqnely  truncate  with  the  angles  acute;  four  transverse, 
nearly  straight,  very  broad,  yellow  bands;  the  basal  one  covering  the 
epiplenra  and  including  a  black  humeral  spot  that  arcuately  connects 
with  the  black  suture;  the  second  yellow  band  slightly  broader  at  the 
suture;  three  bands,  rarrower  than  the  yellow  ones,  and  apex  black; 
the  whole  surface,  even  the  black  parts,  covered  with  sparse,  golden 
pubescence.  Log:^  in  the  female  yellow  with  tips  of  tarsi  infuscate,  in 
the  male  fuscous  with  base  of  tibiae  testaceous.    Length,  10  to  12  mm. 

Male. — Last  ventral  segment  longer  than  broad,  convex,  with  a  small 
triangular  impression  and  a  slight  notch  at  apical  margin. 

Female. — Labt  ventral  segment  broader  than  long,  broadly  concave, 
slightly  emargir.ate  at  apex. 

Two  males  and  Ave  females  collected  (June  and  July)  on  Wilsons 
Peak  (4,000  feet  altitude),  Los  Angeles  County,  California,  by  Mr.  D.  W 
Coquillett. 

Type.—^o.  209,  U.S.N.M. 

This  elegant  species  has  the  form  of  a  Typocerua,  but  has  only  slight 
traces  of  poriferous  spaces  on  the  antennre  and  should  be  placed  near 
Leptura  trihalteata,  LeConte,  from  which  it  differs  by  the  golden  pubes- 
cence covering  even  the  black  parts  and  by  its  larger  size  and  stouter 
form. 

AMPHIONYCHA   SUTURALIS,  new  species. 

Cylindrical,  piceous,  feebly  shining,  clothed  with  a  fine  cinereous 
pubescence  and  with  erect  pale  hairs,  longer  and  more  numerous  above. 
Antennie  black,  as  long  as  the  body,  obsoletely  annulate  with  white  at 
the  base  of  the  joints.  The  four  basal  joints  are  slightly  thickened 
with  long  black  hairs  scattered  all  over,  but  with  a  tendency  to  form  a 
flmbri  on  the  inferior  surface.  The  relative  length  of  the  joints  as 
in  A.  Jlammata,  Newman;  the  third  joint  the  longest,  the  scape  and 
fourth  joint  subequal,  nearly  twice  as  long  as  the  fifth;  the  fifth  to 


VOL.  XIX. 


iiBtricted 


1,168  of  L. 
ter.    An- 
the  body 
pt  mouth 
ered  witli 
ant  in  tbfl 
•ihaHeata. 
Bd  at  the 
jed  (aa  in 
icly  in  the 
itate;  the 
•an  8  verse, 
Bering  the 
r  connects 
(ler  at  the 
»cx  black; 
se,  golden 
'uscate,  in 
to  12  nnn. 
th  a  small 

^  concave, 

[1  Wilsons 
Mr.D.W 


)nly  slight 
aced  near 
len  pubes- 
nd  stouter 


cinereous 
ons  above. 
;h  white  at 
thickened 
f  to  form  a 
e  joints  as 
scape  and 
he  fifth  to 


NO.  1113. 


PROCEEDINGS  OF  THE  NATIOyM  MUSEIM. 


899 


eleventh  are  slender,  filiform,  slightly  decreasing  in  length  toward 
apex.  Head  tut'ouH,  densely  rufopiibescent,  convex,  siightly  impressed 
between  the  antenna',  with  a  finely  impressed  median  line;  a  piceous 
spot  on  the  occiput  and  another  one  behind  the  eye  each  side.  Thorax 
pale  rufous,  densely  rufopubescent,  slightly  wider  than  long,  feebly 
rounded  at  the  sides;  a  broad  median  line  piceous,  sparsely  but  deeply 
punctate.  Elytra  moderately  punctate,  separately  rounded  at  apex; 
suture  narrowly,  and  side  margins  more  broadly,  rufous  with  short 
rufous  pubescence.  Ventral  surface  uniformly  piceous,  more  shining. 
Length,  7.5  to  8  mm. 

Four  examples  collected  by  l*rof.  ('.  II.  T.  Townsend  at  Brownsville, 
Texas. 

Type.—'So.  210,  U.S.N.M. 

This  species  is  not  an  Anqthionyclia  in  the  sense  this  generlt.  name  is 
used  by  European  authors,  but  it  is  congeneric  with  Jiammatay  New- 
man, and  must  follow  that  species,  whatever  it  may  ultimately  be  called. 
Of  the  numerous  allied  genera  from  Central  and  South  America,  they 
seem  to  agree  best  with  the  characters  given  Jor  Eroiiit  of  Hates,  but  the 
third  antennal  Joint  in  our  species  is  but  slightly  longer  than  the  scape. 

METHIA    MORMONA,  new  species. 

Linear,  opaijue,  piceous,  rugossely  pumttate  and  s£,.»rsely  i)ubescent. 
Auteniue  twice  as  long  as  the  body;  scape  much  shortei  iV»n  the  third 
joint,  clavate,  transversely  rugose,  without  any  trace  of  cicatrix ;  scco'mI 
joint  very  short;  third  to  eleventh  slightly  decreasing  in  length,  the 
eleventh  about  three  tifths  as  long  as  the  third.  Antennal  tubercles 
transverse,  obtuse.  Eyes  separated  above  by  a  narrow  channel,  pro- 
longed on  the  front,  which  is  longitudinally  concave.  Thorax  longer 
than  broad,  slightly  constricted  at  each  end,  rounded  on  the  sides  at 
middle,  with  an  arcuate  callosity  in  front  of  scutellum.  Elytra  parallel, 
truncate  at  base,  conjointly  broadly  rounded  at  apex,  reaching  the  tip 
of  abdomen;  sides  iuflexed  at  basal  luilf;  epipleura  wanting;  disk 
fiattened  with  three  longitudinal  raised  lines,  abbreviated  behind ;  color 
testaceous  with  suture,  side  margin.s,  a  large  stripe  from  the  humeral 
umbone  and  apex  black ;  between  the  raised  lines  are  traces  of  brown 
stripes  behind  the  middle.  Ventral  surface  slightly  shining,  finely 
punctate.  Abdomen  cylindrical ;  last  ventral  segment  deeply  emargi- 
nate  (male).  Legs  slender,  coarsely  pubescent ;  tarsi  with  the  first  joint 
as  long  as  second  and  third  together;  fourth  joint  very  slender,  as  long 
as  the  first.    Length,  10  mm. 

Four  examples  were  collected  at  Salt  Lake  City,  Utah,  by  Mr,  Th. 
Boser,  of  the  Marist  College,  Brookland,  District  of  Columbia,  one  of 
which  be  kindly  presented  to  the  National  Museum. 

Type.—^o.  211,  U.S.N.M. 

This  species  differs  from  Methia,  as  defined  by  Newman  and  LeConte, 
by  the  visible  second  antennal  joint  and  in  the  length  of  elytra  and 


400 


NORTH  AMERICAN  COLEOPTERA—LINELL. 


VOL.  XIX. 


terminal  joint  of  antennjp,  but  I  prefer  at  present  to  leave  it  in  tbi 
genus. 

DIPLOTAXIS  BREVISETOSA,  new  species. 

Ovate,  coiivi- :,  rufoferruginous  or  rufopiceous,  shining,  sparsely 
pubescent  with  very  short  seniierect  seta*.  Head  convex,  sparsely  but 
coarsely  and  deeply  punctate;  clypeal  suture  obliterated  except  a  short 
groove  at  the  eye.  Clypeus  more  densely  punctate,  rounded,  slightly 
truncate  at  apex,  with  margin  distinctly  reflexed,  antenna3  10  iointed, 
ferruginous.  Palpi  ferruginous.  Thorax  nearly  twice  broader  than 
long,  broadest  at  middle  (in  i>.  puhcrvlns  and  jjojotwo  the  thorax  is 
broadest  behind  the  middle),  slightly  narrowed  to  base,  arcuately  nar- 
rowed to  ai)ex;  all  the  angles  rectangular;  apex  somewhat  narrower 
than  the  base,  truncate,  with  a  membranous  margin;  base  arcuate  at 
middle ;  disk  moderately  densely  and  deeply  punctate.  Scutellum  semi- 
oval,  with  a  few  punctures  at  base,  smooth  at  apex.  Elytra  at  base 
hardly  broader  than  thorax,  slightly  wider  posteriorly ;  costaj  not  very 
distinct,  each  with  a  series  of  punctures;  intervals  with  slightly  larger 
punctures  of  the  same  size  as  on  thorax,  subseriately  arranged  at 
the  sides.  Pygidium  deeidy  punctate.  Thorax  beneath  densely  and 
coarsely  punctate.  Abdomen  nearly  smooth  at  middle,  coarsely  punc- 
tate at  the  sides.  I-  gs  sparsely  punctate  and  hairy.  Anterior  tibire 
tridentate,  the  two  apical  teeth  strong,  the  upper  one  small.  Claws 
cleft  at  apex;  the  inferior  part  nearly  as  long  as  the  superior,  oblique 
at  apex.    Length,  6.5  to  7.5  mm. 

Six  examples  from  Brighton,  Nueces  County,  Texas. 

Type.— No.  212,  U.S.N.M. 

Of  the  hairy  species  of  Diplotaxis,  the  sordida  of  Say,  is  large 
(11  mm.)  and  has  the  anterior  thoracic  angles  acuminate;  J),  puberulue, 
LeCoute,  is  elongate  and  has  the  anterior  thoracic  angles  obtuse,  and 
J),  popino,  Casey,  has  truncate  and  angulate  clypeus.  All  of  these 
species  have  longer  hairs.  J),  cribnlosa,  LeConte,  io  described  as  having 
short  hairs,  but  the  head  is  densely  punctate  and  the  clypeal  suture 
impressed. 

COPRIS  MCECHUS,  LeConte. 

A  specimen  of  this  species,  previously  recorded  only  from  Texas,  was 
collected  at  Los  Angeles,  California,  by  Dr.  W.  J.  Karlsioe  (November, 
1891). 

LACHNOSTERNA  KARLSIOEI,  new  species. 

(Group /H«crt  of  Horu.) 

liobust,  oblong,  parallel,  rufopiceous,  very  shining.    Clypeus  very 
wide,  distinctly  emarginate,  sparsely  punctate;    margin  moderately 
reflexed;  front  more  densely  punctate.    Thorax  broadest  at  base,  arcu 
ately  narrowed  to  apex;  margin  very  indistinctly  crenulate;  surface 
moderately  cofirsely,  not  very  densely,  punctate;  punctures  umbilicate; 


VOL.  XIX. 


t  in  tbi 


»parsely 
sely  but 
,  a  short 
slightly 
jointed, 
er  than 
lorax  is 
ely  nar- 
lar  rower 
cuate  at 
im  semi- 
at  base 
not  very 
ly  larger 
mged  at 
sely  and 
sly  punc- 
ior  tibia». 
.    Claws 
,  oblique 


is  large 
uberuliie, 
;use,  and 
of  these 
is  having 
il  suture 


jxas,  was 
[)veuiber, 


NO.  1U3. 


PROCEEDINGS  OF  THE  NATIONAL  MUSEUM. 


401 


»eu8  very 
oderately 
ise,  arcu 
surface 
obilicate; 


median  line  indistinct.  Elytra  rather  coarsely  and  rngosely  punctate, 
the  costiB  evident.  Pygidiuni  as  long  as  broad,  oval  at  ai>ex,  coarsely 
and  s|)arsely  punctate.  Metasternum  with  dense  long  hairs.  Abdo- 
men finely  punctulate,  sparsely  along  the  middle.  Claws  strongly 
cnrvate,  with  a  strong  median  tooth.  Last  joint  of  maxillary  palpi 
ovate,  not  impressed.     Length,  25  mm. 

M(dc. — Antenna'  wanting  in  the  type.  Abdomen  flattened  along 
the  middle;  penultimate  segment  near  the  margin  with  a  strong, 
nearly  straight  ridge,  widely  overhanging  the  whole  length;  last  seg- 
ment sparsely  granulate,  with  a  rounded,  shallow  fovea.  Posterior 
tibia?  with  the  inner  spur  slightly  curvate,  two-thirds  the  length  of  the 
outer  one.  ('laspers  intermediate  in  shape  between  those  of  L.  <irandls 
and  L.  nlkei,  but  differ  from  both  in  having  an  obtuse  angulation  on 
the  inner  side  of  each  branch  near  the  base. 

Female. — Antennal  club  small,  shorter  than  the  funicle.  La.^i  ven- 
tral broadly  emargiiiate.  Pubic  process  deeply  cleft  as  in  L.  ulkei,  but 
the  plates  are  dift'erently  sliaped,  the  superior  ones  not  folded. 

Two  examples,  male  and  female,  collected  at  electric  light  in  Hot 
Springs,  Arkansas,  by  Doctor  W.  J.  Karlsioe,  and  kindly  presented  to 
the  National  Museum. 

Typc.—^o.  21. S,  IT.S.X.M. 

This  magnificent  species,  second  in  size  only  to  L.  granclior,  Linell, 
differs  at  first  sight  from  L.  grandis.  Smith,  by  wanting  the  smooth 
coriaceous  surface,  and  from  L.  nlhci,  Smith,  by  its  much  finer  punctua- 
tion. Itcomes  very  near  Ij.  quadrata.  Smith,  but  the  clypeus  is  distinctly 
emarginate.  In  color  it  is  darker  than  Jj.  hornii,  Smith.  A  number  of 
Lachnosternas  were  collected  at  the  same  locality  by  Doctor  Karlsioe; 
among  others,  large  series  of  L.  pninina,  L.  grandk  (including  individ- 
uals with  the  thorax  strongly  sinuate  before  the  posterior  angles),  and 
a  large  black  varietj'  of  L.  arcunta. 
Proc.  X.  M.  vol.  xix 20 


